38,031 results match your criteria: "Leiden University medical Center[Affiliation]"

Background: Shigella infections remain endemic in places with poor sanitation and are a leading cause of diarrheal mortality globally, as well as a major contributor to gut enteropathy and stunting. There are currently no licensed vaccines for shigellosis but it has been estimated that an effective vaccine could avert 590,000 deaths over a 20-year period. A challenge to effective Shigella vaccine development has been the low immunogenicity and protective efficacy of candidate Shigella vaccines in infants and young children.

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Normal tissue reactions vary significantly among patients receiving the same radiation treatment regimen, reflecting the multifactorial etiology of late radiation toxicity. Predicting late radiation toxicity is crucial, as it aids in the initial decision-making process regarding the treatment modalities. For patients undergoing radiotherapy, anticipating late toxicity allows for planning adjustments to optimize individualized care.

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Background: Age and sex are well-known risk factors for cardiovascular complications and mortality following total hip arthroplasty (THA) and total knee arthroplasty (TKA). Yet, stratified up-to-date absolute risk estimates, which are needed to optimize prevention, are lacking.

Methods: All Dutch patients who had a first primary THA and TKA for osteoarthritis between 2015 and 2021 were included.

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Background: Specialist palliative care teams (SPCTs) have significant benefits for patients with advanced disease or frailty, including improved quality of life, greater satisfaction with care, and less potentially inappropriate care at the end of life. Experienced SPCTs are recognised to have higher referral rates compared to novice teams. The aim of this study was to assess the development of hospital-wide integration of specialist palliative care (PC) and of SPCTs in Dutch hospitals between 2014 and 2020.

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Implementation of stop smoking support by mental healthcare professionals: cross-sectional analysis of why nothing much happens.

Discov Ment Health

January 2025

Public Health and Primary Care, Leiden University Medical Center, Hippocratespad 21, PO Box 9600, 2300 RC, Leiden, The Netherlands.

Smoking is highly prevalent and persistent among people with mental illness, but implementation of smoking cessation care by mental healthcare professionals (MHCPs) is lagging behind. This study took a broad approach to understanding implementation of stop smoking support (SSS) by MHCPs (N = 220 for main analyses), incorporating background characteristics, psychosocial factors, client factors, and organizational/environmental factors. Variable selection was based on previous work and the Consolidated Framework for Implementation Research.

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Root-cause analysis of mortality after pancreatic resection in a nationwide cohort.

HPB (Oxford)

December 2024

Depts. of Surgery, Regional Academic Cancer Center Utrecht, St. Antonius Hospital Nieuwegein, University Medical Center Utrecht, the Netherlands. Electronic address:

Background: This study evaluates leading causes of in-hospital mortality after pancreatic resection nationwide to determine areas for improvement.

Methods: This observational cohort study included all in-hospital mortality after pancreatic resection in the Netherlands (2014-2019). Each fatality was considered to be caused by local complications (i.

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Background: Intravascular lithotripsy (IVL) has an excellent efficacy and safety profile in the treatment of calcified coronary lesions during percutaneous coronary intervention (PCI). However, data regarding its use on left main (LM) lesions are still limited.

Objective: We aimed to analyze the technical success and 1-year clinical outcomes in calcified LM lesions treated with IVL.

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Response to "Letter to the editor on: Unhealthful plant-based diet associates with frailty risk predominantly in men with low income from the UK Biobank cohort".

J Nutr Health Aging

January 2025

Department of Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, Einthovenweg 20, 2333 ZC Leiden, The Netherlands. Electronic address:

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The needs of youth at-risk and their families, facing multiple problems and serious mental health issues, exceed the expertise and possibilities of a single stakeholder (professional, organization, municipality). These youngsters require care in which the expertise of different professionals and organizations is integrated. However, combining various types of expertise to provide integrated care to youth at-risk is challenging.

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Introduction: Pain from the cervical facet joints, either due to degenerative conditions or due to whiplash-related trauma, is very common in the general population. Here, we provide an overview of the literature on the diagnosis and treatment of cervical facet-related pain with special emphasis on interventional treatment techniques.

Methods: A literature search on the diagnosis and treatment of cervical facet joint pain and whiplash-associated disorders (WAD) was performed using PubMed, Cochrane, and Embase databases.

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Background And Aims: In the current study, we aimed to identify the association between major and minor electrocardiographic abnormalities and cardiovascular risk factors.

Methods: We used the Tehran cohort study baseline data, an ongoing multidisciplinary, longitudinal study designed to identify cardiovascular disease risk factors in the adult population of Tehran. The electrocardiograms (ECGs) of 7630 Iranian adults aged 35 years and above were analyzed.

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Objective: Metastatic castration-resistant prostate cancer (mCRPC) is a heterogeneous disease with varying survival outcomes. This study investigated whether baseline PSMA PET/CT parameters are associated with survival and treatment response.

Methods: Sixty mCRPC patients underwent [F]PSMA-1007 PET/CT before treatment with androgen receptor-targeted agents (ARTAs) or chemotherapy.

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The increasing use of recreational nitrous oxide ([Formula: see text]O) in the Netherlands and its link to traffic accidents highlights the need for reliable detection methods for law enforcement. This study focused on ex vivo detection of [Formula: see text]O in exhaled breath and examining its persistence in the human body. Firstly, a low-cost portable infrared based detector was selected and validated to detect [Formula: see text]O in air.

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Revitalizing the heart: strategies and tools for cardiomyocyte regeneration post-myocardial infarction.

NPJ Regen Med

January 2025

Department of Cardiovascular Surgery, Université Paris Cité, INSERM U970, PARCC Hôpital Européen Georges Pompidou, 75015, Paris, France.

Myocardial infarction (MI) causes the loss of millions of cardiomyocytes, and current treatments do not address this root issue. New therapies focus on stimulating cardiomyocyte division in the adult heart, inspired by the regenerative capacities of lower vertebrates and neonatal mice. This review explores strategies for heart regeneration, offers insights into cardiomyocyte proliferation, evaluates in vivo models, and discusses integrating in vitro human cardiac models to advance cardiac regeneration research.

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A noise-robust post-processing pipeline for accelerated phase-cycled Na Multi-Quantum Coherences MRI.

Z Med Phys

January 2025

Aix-Marseille Univ, CNRS, CRMBM, Marseille, France; APHM, Hôpital Universitaire Timone, CEMEREM, Marseille, France; Department of Radiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.

Purpose: To develop an improved post-processing pipeline for noise-robust accelerated phase-cycled Cartesian Single (SQ) and Triple Quantum (TQ) sodium (Na) Magnetic Resonance Imaging (MRI) of in vivo human brain at 7 T.

Theory And Methods: Our pipeline aims to tackle the challenges of Na Multi-Quantum Coherences (MQC) MRI including low Signal-to-Noise Ratio (SNR) and time-consuming Radiofrequency (RF) phase-cycling. Our method combines low-rank k-space denoising for SNR enhancement with Dynamic Mode Decomposition (DMD) to robustly separate SQ and TQ signal components.

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Background: Coronary microvascular disease (CMD) is defined as impaired coronary flow reserve (CFR) and/or increased microvascular resistance (MR) without significant epicardial coronary stenosis. This definition allows for discordant CFR and MR values within patients with CMD. The aim of this meta-analysis is to characterise the prognostic value and pathophysiological backgrounds of CFR and MR con-/discordance.

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Follow-up after first-Line nivOlumab plus ipilimumab in patients with diffuse pleuRal mesotheliomA: a real-world Dutch cohort study-FLORA.

ESMO Open

January 2025

Department of Thoracic Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands; Department of Pulmonary Medicine, Leiden University Medical Center, Leiden, The Netherlands. Electronic address:

Background: Diffuse pleural mesothelioma (dPM) is an aggressive malignancy, primarily treated with palliative systemic therapy. Since 2022, nivolumab-ipilimumab (nivo/ipi) has replaced chemotherapy as the standard first-line treatment for dPM in the Netherlands. Chemotherapy remains a rational second-line treatment.

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Cerebral Microbleeds and Amyloid Pathology Estimates From the Amyloid Biomarker Study.

JAMA Netw Open

January 2025

Alzheimer Center Limburg, Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands.

Importance: Baseline cerebral microbleeds (CMBs) and APOE ε4 allele copy number are important risk factors for amyloid-related imaging abnormalities in patients with Alzheimer disease (AD) receiving therapies to lower amyloid-β plaque levels.

Objective: To provide prevalence estimates of any, no more than 4, or fewer than 2 CMBs in association with amyloid status, APOE ε4 copy number, and age.

Design, Setting, And Participants: This cross-sectional study used data included in the Amyloid Biomarker Study data pooling initiative (January 1, 2012, to the present [data collection is ongoing]).

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Background: It is known that illicit and prescribed drugs impact pupil size, eye movement and function. Still, comprehensive quantitative evaluations under known ambient light conditions are lacking, when smartphones are used for monitoring.

Methods: In this clinical study (NCT05731999), four medicinal products with addiction risks were administered to 48 subjects (18-70 years old, all with informed consent, 12 subjects per drug).

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The () gene family is of rising importance as their fusions are oncogenic, and specific target drugs are available to inhibit the chimera proteins. Pan-TRK antibody, which shows the overexpression of the genes, is a useful tool to detect tumors with or without gene alterations, due to high negative predictive value. Though it is well known that pan-TRK immunopositivity is usually not connected to fusion, the role of other possible genetic alterations is under-researched.

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Background And Purpose: In proton therapy, a relative biological effectiveness (RBE) of 1.1 is used to convert proton dose into an equivalent photon dose. However, RBE varies with tissue type, fraction dose, and beam quality parameters beyond dose such as linear energy transfer (LET) raising concerns about increased local effectiveness and potential toxicity.

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We have developed a 37-color spectral flow cytometry panel to assess the phenotypical differentiation of innate and adaptive immune lymphoid subsets within human intestinal tissue. In addition to lineage markers for identifying innate lymphoid cells (ILC), TCRγδ, MAIT (mucosal-associated invariant T), natural killer (NK), CD4 and CD8 T cells, we incorporated markers of differentiation and activation (CD45RA, CD45RO, CD25, CD27, CD38, CD39, CD69, CD103, CD127, CD161, HLA-DR, CTLA-4 [CD152]), alongside transcription factors (Bcl-6, FoxP3, GATA-3, Helios, T-bet, PU.1 and RORγt) and chemokine receptors (CCR4, CCR6, CCR7, CXCR3, and CXCR5).

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Background: Informal caring is associated with mental health deterioration among young people and impacts their help-seeking ability. Social network can provide social support and mitigate the impact of informal care. However, young carers may avoid identification and withdraw from social networks.

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